COPY: NIMS Milling Practice Test #1

If a dimension on a drawing is 4.868" with a tolerance of +/-.003", what is the largest the dimension can check and still be in tolerance?

If you are standing in front of a vertical CNC machining center, what direction does the X-axis travel?

A boxed dimension is defined as a _____ dimension.

S.D.S. (Safety Data Sheet) are sheets that?

How many 4-7/8 inch long rods can be cut from a rod with a total length of 97-1/2 inches?

What does the code M01 do?

What does code M4 do?

How often should you check waylube and coolant levels?

What formula is used to calculate RPM?

Which display screen mode lets the operator enter tooling related data?

What on/off mode switch works in conjunction with an M01 code in the program?

You are running the first workpiece on a proven program. You measure a hole, and it's 0.4325" deep. The basic dimension for the hole is 0.428" +/- 0.001" The depth of this hole is controlled by tool 2, and tool 2 affects nothing else. What should you do?

A boxed letter represents a _____?

If you want to use a 1.0" diameter 2-flute end mill running at 3000 RPM, what feed rate should you run at to achieve a 0.003" per tooth chip load?

Match the G54 code to its description.

What tool # should be used in the command 'T__ M6; S2000 M3; G43 H12 Z1.0 M8'?

Which display screen mode lets the operator actually see the distance-to-go in the current CNC command?

What direction do you turn the manual pulse generator or move the axis to move a tool from right to left on a CNC mill?

What mode switch position allows you to send the machine to its reference position?

+/-.005 represents a _____?

While dry running a proven program, the machine goes into an alarm state and shows a message, 'Overcutting will occur during Cutter Compensation.' What is most likely wrong?

You need to tool change to Tool #11. How would you do it?

What does the M30 code do?

You must cut a part to 10.175 inches long and need to add a total of 1/8 of an inch for finish machining. How long should you saw the block?

Using a standard high-speed steel twist drill, you are to drill a hole 0.312" deep (not including the drill point). If the drill point checks at 0.098" long, how deep should the drill be programmed?

Why do you have to 'home' the machine when you first power up?

You have a dimension that is supposed to be 1.105" +/-.0015". Is 1.1033" within the tolerance zone?

What button will continue the program after a program stop has been read?

What mode switch position allows you to move the machine axes manually?

The upper size limit on a pocket is 0.787". You measure the diameter and it checks at 0.7915". How much oversize is the diameter?

What is the code G28?

When should safety glasses be worn?

After completing an entire setup and running one tool, you must shut the machine off and go home. When you come in the next day, you must:

What is the code M00?

What does the G00 code activate?

What does the G94 code activate (on a mill)?

What is the description of a G01 code?

What on/off mode switch works in conjunction with a '/' (forward slash) in the program to skip over lines of code?

What mode switch position allows programs to be modified?

Before running a program that cuts a pocket 3.0" wide with a +/-.002 tolerance, what should you do to the tool's offset to prevent a scrapped part?